Next, they dive steeply down in a tight spiral, keeping the landmark in the center.

接下来，他们以紧密的螺旋形急剧下降，将地标保持在中心。

I wanna coat the entire thing and now to form them, I roll in a tight spiral from either end to the midline.

我想把整个东西都涂上， 现在要形成它们，我从两端到中线呈紧密螺旋状滚动。